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Aluminum block and ladder frameHigh-pressure casted aluminum block and ladder frame ensure enhanced rigidity of the engine, and the multiple ribs and spherical structures of the area attached to the transmission give extra rigidity and reduced noise.
Cone-shaped Rib structure
Offset crankshaft
Offsetamount
Cylinder borecenter
Crankshaft center
Timing chain driving system
Silent chain
Tensioner
Arm
Highly durable roller-type timing chain ensuresmaintenance-free operation and the ratchetembedded hydraulic auto-tensioner is appliedto prevent chain-slippage and noise.
The centre of crank-shaft is offset from thecentre of cylinder block's bore to reducefriction-loss at explosion-strokes. Expeditedcombustion by reduced speed ofpiston leads to optimization of fuel economy.
GDI exclusive piston
• Piston shape facilitates fuel to be injected directly into the cylinder. Newly designed internal coolant flow
improves fuel efficiency and reducestemperature of the block’s upper areasurfaces.
Water Jacket Inserts
• Promotes fuel efficiency by increasing the compression ratio. ( MPI 10.5 → GDI 11.0 )
Top shapeof GDI piston
Dual CVVT(Continuously Variable Valve Timing)
Enhanced performance and fuel-efficiencyby optimized rotation of the crank-shaft.
Cylinder block and bed platethe high-pressure casted aluminium cylinder block and the bed plate im-prove dynamic stiffness and NVH of the lower structure of cylinder block. Weight is reduced by about 30% and structural rigidity is improved by about 30%.
Aluminum cylinderblock
Aluminum bed plate
Offset crank shaftCylinder bores and crankshaft center are offset for less friction loss between the pistonand cylinder bore, resulting in fuel economy improvement of about 1%.
Crankshaftcenter
Cylinder borecenterFriction-loss
reduction
11mm
Plastic variable intake systemVariable intake manifold promotes optimal performance. Lightweight plastic materialreduces weight by 30%. Engine output is in-creased by 4% compared with fixed specifi-cation (TIS).
VIS actuatorIntakemanifold
Roller swing arm and mechanical lash adjuster
Produces less kinetic friction, resulting in lessengine friction and fuel economy im-provementof approximately 1%. Exhaust camshaft
Intake camshaft
Roller swing arm
Mechanical lash adjuster
Variable intake valve timing Promotes optimal variation of intake / exhaust valve timing for better engine performance, fuel economy improve-ment of 1-2%, and exhaust gas reduc-tion of about 30%.
GDI (Gasoline Direct Injection) system
GDI system injects high-pressure fuel intocombustion chamber directly to in-creaseair-charging efficiency by reducingtemperature of combustion cham-ber.thereby enhancing the engine per-formance.
Provides enhanced stiffness and reduces NVHby sustaining the moving parts firmly as well asfacilitating lubrication and cooling system ofthe main engine parts.
Cone-shapedStructure
Cylinder Block
Bed Plate
AluminumOil Pan
Serpentine belt system
The Simplified composition of the systemimproves the NVH and prevents belt slip.It also helps the performance of theauxiliary systems.
Timing chain drive system
Timing chain system offers a better durability and less maintenance,while the hydraulic auto-tensionerensures optimized chain behavior.
Hydraulic Lash Adjusters (HLA)
Improves durability and fuel economythrough the high rigidity of thevalve system and the lightweightcomposition.
Swirl Control Valves
Swirl control valves ensure optimalcontrol of the swirl ratio and flow-coefficient of the air.